General douchebag version of a drug free kid.
Someone who is IN YOUR FACE drug free for absolutely no reason. They feel the need to announce to everyone that they are straight edge and generalize everyone who doesnt draw x's on their hands as douchebag people.

Will challenge you to constant fights completely unprovoked if you aren't straight edge (Even if you are drug free) but will never fight one on one and will only fight with weapons and all of their friends at the same time.

Claim to be doing good for their communities but are actually horrible, terrible people.

Usually are only straight edge to get attention but if none of their straight edge kid friends find out, they have no problem drinking/smoking/doing drugs.

Claim that Earth Crisis is the best band in the world but it is actually the single worst band in existence.

Straight edge kid: Hey, what are you doing?
Regular Person: Uhh... hey stranger. Im off to donate to the food bank and go help out at the animal shelter. You wouldn't happen to have a cigarette I could have would you?
Straight edge kid: FUCK YOU YOU PIECE OF SHIT DRUGGIE!! YOURE DEAD!!!
Regular Person: I was just asking, sheesh. It's not that big of a deal.